Lavatory system



FIG. 1 is a top view of the claimed design;

FIG. 2 is a bottom view of the claimed design;

FIG. 3 is a front view of the claimed design;

FIG. 4 is a back view of the claimed design;

FIG. 5 is a right side view of the claimed design;

FIG. 6 is a left side view of the claimed design; and,

FIG. 7 is a perspective view of the claimed design.

The ornamental design for the lavatory system, as shown and described.